Tunneling of Interacting Fermions in 1D Systems

• Authors: A. Gendiar , M. Moško , P. Vagner , R. Németh
• Languages of publication: EN

Abstracts

EN

Using the self-consistent Hartree-Fock approximation for spinless electrons at zero temperature, we study tunneling of the interacting electron gas through a single δ barrier in a finite one-dimensional wire connected to contacts. Our results exhibit features known from correlated many-body models. In particular, the conductance decays with the wire length as ∝ L^{-2α}, where the powerα is universal. We also show that a similar result for a wire conductance can be extracted from the persistent current (I) through theδ barrier in a one-dimensional ring, where it is known that I∝ L^{-1-α}.

Keywords

EN

73.23.-b; 73.61.Ey

Discipline

• 73.61.Ey: III-V semiconductors
• 73.23.-b: Electronic transport in mesoscopic systems

• Journal: Acta Physica Polonica A
• Year: 2005
• Volume: 108
• Issue: 4
• Pages: 661-667

Dates

published

2005-10

received

2005-06-04

Contributors

author

A. Gendiar

• Institute of Electrical Engineering, Slovak Academy of Sciences, Dúbravská cesta 9, 841 04 Bratislava, Slovakia

author

M. Moško

• Institute of Electrical Engineering, Slovak Academy of Sciences, Dúbravská cesta 9, 841 04 Bratislava, Slovakia

author

P. Vagner

• Institute of Electrical Engineering, Slovak Academy of Sciences, Dúbravská cesta 9, 841 04 Bratislava, Slovakia

author

R. Németh

• Institute of Electrical Engineering, Slovak Academy of Sciences, Dúbravská cesta 9, 841 04 Bratislava, Slovakia

References

• 1. S. Datta, Electronic Transport in Mesoscopic Systems, Cambridge University Press, Cambridge 1995
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• 4. A. Cohen, R. Berkovits, A. Heinrich, Int. J. Mod. Phys. B, 11, 1845, 1997
• 5. R. Németh, M. Mosko, these proceedings, Acta Phys. Pol. A, 108, , 2005
• 6. V. Meden, W. Metzner, U. Schollwock, K. Schonhammer, Phys.Rev. B, 65, 045318, 2002

Identifiers

DOI

10.12693/APhysPolA.108.661